Screening structure for reducing coal ash adhesion

Abstract

The utility model relates to the technical field of cement production, and discloses a screening structure for reducing coal ash adhesion. The screening structure capable of reducing coal ash adhesion comprises a supporting frame, a limiting pipe is fixedly installed above the supporting frame, a chip groove is fixedly formed in the outer side of the limiting pipe, a driving motor is installed on the front side of the supporting frame in a penetrating and inserting mode, and when the driving motor drives a driving gear to rotate, the chip groove is fixedly formed in the front side of the supporting frame. The movable ring can be driven by the transmission gear to enable the metal screen to rotate, the transmission motor can drive the brush and the baffle to rotate through the driving shaft when started, the relative position between the baffle and the metal screen is changed, the baffle shifts coal ash above the metal screen, and relative displacement is generated between the coal ash and the metal screen. In this way, coal ash can quickly pass through the metal screen, the time for the coal ash to pass through the metal screen is shortened, meanwhile, the coal ash can be evenly distributed above the metal screen, and therefore the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a screening structure for reducing coal ash adhesion. Background Art

[0002] The important factor affecting the activity of fly ash is the fineness of fly ash. The finer the fly ash, the higher the activity. The purpose of reducing the fineness of fly ash and obtaining high-quality ash can be achieved by strengthening the sorting method and sorting the fly ash through mechanical mesh.

[0003] The existing reference announcement number is CN211330197U, which discloses a powder screening structure. The screening structure is intended to solve the current direct use of rotary vibrating screen for screening, in which the intermediate process cannot be sampled and tested in real time, resulting in problems such as poor products and finished product waste; the screening structure includes a feeding bin, a frame, a spiral bidirectional feeder, a support stand, a rotary vibrating screen, a storage bin under the screen, a first dustproof nylon bag, etc. The frame is fixed with a support stand, and a spiral bidirectional feeder for conveying materials is fixedly installed on the support stand. The inlet of the spiral bidirectional feeder is connected to the feeding bin, and the outlet of the spiral bidirectional feeder is connected to the rotary vibrating screen for vibration screening. The outlet of the rotary vibrating screen under the screen is connected to the storage bin under the screen through the first dustproof nylon bag. Through the screening structure, the material can be sampled and monitored at any time without affecting production, and the service life of the rotary vibrating screen and the transmission and screening fluency of the product can be effectively extended.

[0004] Most existing screening structures use vibration to make powder pass through the screening structure, which is inefficient and produces a lot of noise. At the same time, due to the high moisture content of fly ash, fly ash is easy to adhere to the surface of the screening structure, which is easy to block the material. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a screening structure for reducing coal ash adhesion, which has the advantages of improving screening efficiency and avoiding coal powder blockage, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening structure for reducing coal ash adhesion, comprising: a support frame, a limit tube is fixedly installed on the top of the support frame, a chip removal groove is fixedly installed on the outside of the limit tube, a driving motor is inserted and installed on the front side of the support frame, a driving gear is fixedly installed on the top of the driving motor, a receiving pipe is fixedly installed on the bottom of the support frame, a connecting bearing is embedded and installed on the top of the receiving pipe, a movable ring is fixedly installed on the top of the connecting bearing, a transmission gear is fixedly installed on the outside of the movable ring, a metal screen is fixedly installed inside the movable ring, a top cover is movably installed on the top of the limit tube, a fixed frame is fixedly installed on the top of the top cover, a transmission motor is inserted and installed in the center of the fixed frame, a connecting column is fixedly installed below the transmission motor, a feeding trough is inserted and installed above the top cover, a driving shaft is inserted and installed on the lower end of the connecting column, a brush is fixedly installed below the driving shaft, and a baffle is fixedly installed on the left side of the driving shaft; the receiving pipe can receive the sieved coal powder.

[0009] As the preferred technical solution of the utility model, the lower end of the limiting tube is not fixedly in contact with the top of the movable ring, a rectangular opening structure is provided on the left side of the limiting tube, and the inner side of the chip groove is engaged with the movable ring; the limiting tube can limit the position of the coal ash.

[0010] As the preferred technical solution of the utility model, the bottom end of the receiving tube is a conical structure, the receiving tube is fixedly connected with the support frame by means of interlaced installation, and the connecting bearing is fixedly installed on the top of the inner wall of the receiving tube; the movable ring can drive the metal screen to rotate.

[0011] As the preferred technical solution of the utility model, the movable ring is rotatably connected with the receiving tube through a connecting bearing, the connecting position of the connecting bearing and the movable ring is located at the lower end of the movable ring, the installation position of the transmission gear is located below the annular protrusion structure at the top of the movable ring, and the transmission gear and the driving gear are rotatably connected; the.

[0012] As a preferred technical solution of the utility model, the top cover and the limiting tube are movably connected via a threaded structure, the top cover and the transmission motor are fixedly connected to the top cover via a fixed frame, and the top end of the connecting column is fixedly installed on the lower end of the rotating shaft of the transmission motor by means of insertion; the connecting column can facilitate the transmission motor to drive the drive shaft to rotate.

[0013] As a preferred technical solution of the present utility model, the lower end of the feed chute is a columnar structure, and the lower end of the feed chute passes through the top cover and vertically extends to one-half of the limiting tube; the feed chute can facilitate the addition of materials.

[0014] As the preferred technical solution of the utility model, the driving shaft is fixedly connected to the rotating shaft of the transmission motor through a connecting column, and a protruding structure is provided on the front and rear sides of the driving shaft. The brush is installed symmetrically front and back and mirror-symmetrically left and right under the protruding structure of the driving shaft with the center of the driving shaft as the reference. The baffle is an inclined structure and is installed symmetrically left and right on the left and right sides of the driving shaft with the center of the driving shaft as the reference; the baffle can drive the particles that cannot pass through the metal screen to move.

[0015] Compared with the prior art, the utility model provides a screening structure for reducing coal ash adhesion, which has the following beneficial effects:

[0016] 1. The utility model provides a movable ring, which is rotatably connected to the receiving tube by connecting the bearing, and is fixedly connected to the transmission gear, and the transmission gear is meshed with the driving gear. When the driving motor drives the driving gear to rotate, the movable ring can rotate with its own axis as the reference under the drive of the transmission gear, so that the metal screen rotates. Since the transmission motor is connected to the driving shaft through the connecting column, the transmission motor can drive the brush and the baffle to rotate through the driving shaft when starting. By controlling the driving shaft and the movable ring to rotate in opposite directions, the relative position between the baffle and the metal screen is changed, so that the baffle drives the coal ash above the metal screen to generate relative displacement with the metal screen. This method can make the coal ash pass through the metal screen quickly, reduce the time for the coal ash to pass through the metal screen, and at the same time make the coal ash more evenly distributed above the metal screen, thereby improving the screening efficiency.

[0017] 2. The utility model sets a feed chute, and the columnar structure at the lower end of the feed chute is located on the front side of the movable ring. After the coal ash enters the limiting tube through the feed chute, it will fall to the front part of the center of the metal screen. Since the metal screen is continuously rotated driven by the movable ring, the coal ash can be more evenly distributed on the surface of the metal screen. At the same time, the coal ash on the front side of the metal screen will pass through the metal screen under the action of the baffle and the brush during the rotation of the metal screen. After the metal screen rotates one circle, the coal ash on the surface completely passes through the metal screen, and the brush can clean the metal screen. This method can prevent the coal ash from accumulating on the top of the metal screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the support frame and the limiting pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the movable ring and the metal screen of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the top cover and the transmission motor of the utility model;

[0022] Among them: 1. Support frame; 11. Limiting tube; 12. Chip removal groove; 13. Driving motor; 14. Driving gear; 15. Receiver tube; 16. Connecting bearing; 17. Movable ring; 18. Transmission gear; 19. Metal screen; 2. Top cover; 21. Fixed frame; 22. Transmission motor; 23. Connecting column; 24. Feed trough; 25. Driving shaft; 26. Brush; 27. Baffle. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4In this embodiment, a screening structure for reducing coal ash adhesion includes: a support frame 1, a limit tube 11 is fixedly installed on the top of the support frame 1, a chip removal groove 12 is fixedly installed on the outer side of the limit tube 11, a drive motor 13 is inserted and installed on the front side of the support frame 1, a drive gear 14 is fixedly installed on the top of the drive motor 13, a receiving tube 15 is fixedly installed on the bottom of the support frame 1, a connecting bearing 16 is embedded and installed on the top of the receiving tube 15, a movable ring 17 is fixedly installed on the top of the connecting bearing 16, a transmission gear 18 is fixedly installed on the outer side of the movable ring 17, and a metal screen 19 is fixedly installed inside the movable ring 17.

[0027] The lower end of the limiting tube 11 is in contact with the top of the movable ring 17 and is not fixed. A rectangular opening structure is provided on the left side of the limiting tube 11 , and the inner side of the chip removal groove 12 is engaged with the movable ring 17 .

[0028] The bottom end of the receiving tube 15 is a conical structure. The receiving tube 15 is fixedly connected to the support frame 1 by inserting and installing. The connecting bearing 16 is fixedly installed on the top end of the inner wall of the receiving tube 15 .

[0029] The movable ring 17 is rotationally connected to the receiving tube 15 via the connecting bearing 16. The connecting position between the connecting bearing 16 and the movable ring 17 is located at the lower end of the movable ring 17. The installation position of the transmission gear 18 is located below the annular protrusion structure at the top of the movable ring 17. The transmission gear 18 is rotationally connected to the driving gear 14.

[0030] Specifically, the support frame 1 can support the limiting tube 11, the limiting tube 11 can limit the position of the coal ash, the chip discharge groove 12 can facilitate the discharge of particulate matter, the drive motor 13 can drive the drive gear 14 to rotate, the drive gear 14 can drive the transmission gear 18 to rotate, the receiving tube 15 can receive the screened coal powder, the connecting bearing 16 can facilitate the rotation of the movable ring 17, the movable ring 17 can drive the metal screen 19 to rotate, the transmission gear 18 can drive the movable ring 17 to rotate, and the metal screen 19 can screen the coal ash.

[0031] A top cover 2 is movably installed above the limiting tube 11, a fixing frame 21 is fixedly installed above the top cover 2, a transmission motor 22 is inserted through the center of the fixing frame 21, a connecting column 23 is fixedly installed below the transmission motor 22, a feed trough 24 is inserted through the top of the top cover 2, a driving shaft 25 is inserted through the lower end of the connecting column 23, a brush 26 is fixedly installed below the driving shaft 25, and a baffle 27 is fixedly installed on the left side of the driving shaft 25.

[0032] The top cover 2 and the limiting tube 11 are movably connected via a threaded structure. The top cover 2 and the transmission motor 22 are fixedly connected to the top cover 2 via a fixing frame 21. The top end of the connecting column 23 is fixedly installed on the lower end of the rotating shaft of the transmission motor 22 by inserting.

[0033] The lower end of the feed chute 24 is a columnar structure, and the lower end of the feed chute 24 passes through the top cover 2 and vertically extends to the half of the limiting tube 11 .

[0034] The driving shaft 25 is fixedly connected to the rotating shaft of the transmission motor 22 through a connecting column 23. A protruding structure is provided on the front and rear sides of the driving shaft 25. The brush 26 is installed below the protruding structure of the driving shaft 25 in a front-to-back symmetrical and left-to-right mirror-symmetrical manner with respect to the center of the driving shaft 25. The baffle 27 is an inclined structure and is installed on the left and right sides of the driving shaft 25 in a left-to-right mirror-symmetrical manner with respect to the center of the driving shaft 25.

[0035] Specifically, the top cover 2 can support the fixed frame 21, the fixed frame 21 can limit the position of the transmission motor 22, the transmission motor 22 can drive the connecting column 23 to rotate, the connecting column 23 can facilitate the transmission motor 22 to drive the drive shaft 25 to rotate, the feed trough 24 can facilitate the addition of materials, the drive shaft 25 can drive the brush 26 and the baffle 27 to rotate, the brush 26 can facilitate the powder to pass through the metal screen 19 and clean the metal screen 19 at the same time, and the baffle 27 can drive the particles that cannot pass through the metal screen 19 to move.

[0036] When in use, the movable ring 17 is connected to the receiving tube 15 through the connecting bearing 16 to form a rotation connection, and the movable ring 17 is fixedly connected to the transmission gear 18, and the transmission gear 18 is meshed with the driving gear 14. When the driving motor 13 drives the driving gear 14 to rotate, the movable ring 17 can rotate with its own axis as the reference under the drive of the transmission gear 18, so that the metal screen 19 rotates. Since the transmission motor 22 is connected to the driving shaft 25 through the connecting column 23, the transmission motor 22 can drive the brush 26 and the baffle 27 to rotate through the driving shaft 25 when it is started. By controlling the driving shaft 25 to rotate in the opposite direction to the movable ring 17, the relative position between the baffle 27 and the metal screen 19 is changed, so that the relative displacement between the coal ash above the metal screen 19 caused by the baffle 27 and the metal screen 19 is generated. This method can make the coal ash pass through the metal screen 19 quickly, reduce the time for the coal ash to pass through the metal screen 19, and at the same time make the coal ash more evenly distributed with the metal screen. The sieve 19 is placed above the sieve 19, thereby improving the screening efficiency. Since the columnar structure at the lower end of the feed chute 24 is located in front of the movable ring 17, the fly ash will fall to the front part of the center of the metal sieve 19 after entering the limiting tube 11 through the feed chute 24. Since the metal sieve 19 is continuously rotated under the drive of the movable ring 17, the fly ash can be more evenly distributed on the surface of the metal sieve 19. At the same time, the fly ash on the front side of the metal sieve 19 will be moved by the baffle 27 and the brush 26 when the metal sieve 19 rotates. During the movement, the coal ash passes through the metal screen 19. After the metal screen 19 rotates one circle, the coal ash on the surface completely passes through the metal screen 19, and the brush 26 can clean the metal screen 19. This method can prevent the coal ash from accumulating on the top of the metal screen 19. At the same time, the particles that cannot pass through the metal screen 19 will be driven by the baffle 27 to rotate with the axis of the drive shaft 25 as the reference, and will eventually enter the interior of the chip groove 12 under the action of centrifugal force, and be discharged from the limit tube 11 through the chip groove 12.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening structure for reducing coal ash adhesion, It is characterized in that include: A support frame (1), a limit tube (11) is fixedly installed on the upper part of the support frame (1), a chip removal groove (12) is fixedly installed on the outer side of the limit tube (11), a driving motor (13) is inserted and installed on the front side of the support frame (1), a driving gear (14) is fixedly installed on the upper part of the driving motor (13), a receiving tube (15) is fixedly installed on the lower part of the support frame (1), a connecting bearing (16) is embedded and installed on the top end of the receiving tube (15), a movable ring (17) is fixedly installed on the upper part of the connecting bearing (16), a transmission gear (18) is fixedly installed on the outer side of the movable ring (17), and the movable ring A metal screen (19) is fixedly installed inside the (17); a top cover (2) is movably installed above the limiting tube (11); a fixing frame (21) is fixedly installed above the top cover (2); a transmission motor (22) is inserted through the center of the fixing frame (21); a connecting column (23) is fixedly installed below the transmission motor (22); a feed trough (24) is inserted through the top of the top cover (2); a driving shaft (25) is inserted through the lower end of the connecting column (23); a brush (26) is fixedly installed below the driving shaft (25); and a baffle (27) is fixedly installed on the left side of the driving shaft (25).

2. A screening structure for reducing coal ash adhesion according to claim 1, Features: The lower end of the limiting tube (11) is in loose contact with the top of the movable ring (17); a rectangular opening structure is provided on the left side of the limiting tube (11); and the inner side of the chip removal groove (12) is engaged with the movable ring (17).

3. A screening structure for reducing coal ash adhesion according to claim 1, Features: The bottom end of the receiving tube (15) is a conical structure, and the receiving tube (15) is fixedly connected to the support frame (1) by means of interlaced installation, and the connecting bearing (16) is fixedly installed on the top end of the inner wall of the receiving tube (15).

4. A screening structure for reducing coal ash adhesion according to claim 1, Features: The movable ring (17) is rotatably connected to the receiving tube (15) via the connecting bearing (16); the connecting position of the connecting bearing (16) and the movable ring (17) is located at the bottom of the movable ring (17); the installation position of the transmission gear (18) is located below the annular protruding structure at the top of the movable ring (17); and the transmission gear (18) is rotatably connected to the driving gear (14).

5. A screening structure for reducing coal ash adhesion according to claim 1, Features: The top cover (2) and the limiting tube (11) are movably connected via a threaded structure; the top cover (2) and the transmission motor (22) are fixedly connected to the top cover (2) via a fixing frame (21); and the top end of the connecting column (23) is fixedly installed on the lower end of the rotating shaft of the transmission motor (22) by means of insertion.

6. A screening structure for reducing coal ash adhesion according to claim 1, Features: The lower end of the feed chute (24) is a columnar structure, and the lower end of the feed chute (24) passes through the top cover (2) and vertically extends to one-half of the position limiting tube (11).

7. A screening structure for reducing coal ash adhesion according to claim 2, Features: The drive shaft (25) is fixedly connected to the rotating shaft of the transmission motor (22) through a connecting column (23); a protruding structure is arranged on the front and rear sides of the drive shaft (25); the brush (26) is installed below the protruding structure of the drive shaft (25) in a front-to-back symmetrical and left-to-right mirror-symmetrical manner with the center of the drive shaft (25) as a reference; the baffle (27) is an inclined structure and is installed on the left and right sides of the drive shaft (25) in a left-to-right mirror-symmetrical manner with the center of the drive shaft (25) as a reference.

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